garrett must inspect a bridge that goes over a river. he begins 18 feet above water level to inspect the…

garrett must inspect a bridge that goes over a river. he begins 18 feet above water level to inspect the lighting, descends 32 feet to inspect the base of the bridge underwater, then descends another 4 feet to check on the concrete anchoring the base. which best represents garretts position with respect to the water level?\n-54 feet\n-30 feet\n-18 feet\n-10 feet

garrett must inspect a bridge that goes over a river. he begins 18 feet above water level to inspect the lighting, descends 32 feet to inspect the base of the bridge underwater, then descends another 4 feet to check on the concrete anchoring the base. which best represents garretts position with respect to the water level?\n-54 feet\n-30 feet\n-18 feet\n-10 feet

Answer

Explanation:

Step1: Define upward as positive and downward as negative

Initial position is +18 feet.

Step2: Calculate position after first - descent

He descends 32 feet, so new position is $18 - 32=- 14$ feet.

Step3: Calculate final position after second - descent

He descends another 4 feet, so final position is $-14-4=-18$ feet.

Answer:

-18 feet